The Linux Administration group is for the discussion of technical issues technical issues that arise during the administration of Linux systems, including maintaining the operating system and supporting end-user applications.

Check out Power Navigator from www.mpginc.com
It uses nmon or sar to gather data on each server which can be then be
graphed to look at disk/process/memory etc. information. It can also get
more accurate information for a migration to another server or server type.

I am going to check out these others myself - nagios does what I need for
monitoring disk usage, CPU load, memory, etc ... however
what I find lacking is an option to monitor /var/log/messages for certain
messages (ie -NFS server not responding, panic, etc)

That's why you'd use Munin. While nagios allows you to monitor Events, i.e configured thresholds for disk space utilization, it does not do a good job of trending utilization of every partition on ever server you have, and showing that on daily/weekly,monthly graphs so you can do decent capacity planning. For that you need something like munin-node/munin. What you'll get is graphs of every disk partition on your servers on one web page (mrtg-style), but much easier than building these up from mrtg. You can do things like graph the disk utilization of multiple servers on one graph, for comparison purposes.

Copyright 1998-2015 Ziff Davis, LLC (Toolbox.com). All rights reserved. All product names are trademarks of their respective companies. Toolbox.com is not
affiliated with or endorsed by any company listed at this site.